The invention relates to the field of energy optimization and particularly relates to a park comprehensive energy system optimal scheduling method considering multi-energy coordination. The method comprises steps of establishing a comprehensive energy system optimal scheduling model, solving the model to obtain actual output values of each power generation device and each energy conversion device,and calculating system operation cost according to the obtained actual output values of each power generation device and each energy conversion device to perform energy optimization scheduling of thecomprehensive energy system. The method is advantaged in that the park comprehensive energy system optimization scheduling strategy based on multi-energy cooperative operation is provided, the comprehensive energy system optimal scheduling model is established, multi-energy complementary operation and energy gradient utilization of the system are realized, the comprehensive operation cost of thesystem is reduced, the scheduling potential of a thermoelectric load of a user side is further excavated through introduced electricity-to-gas equipment and energy storage equipment, operation economic property of the system is improved, and energy purchasing cost and environmental governance cost of the system are reduced.